## For instruction on writing tutorials ## http://www.ros.org/wiki/WritingTutorials #################################### ##FILL ME IN #################################### ## for a custom note with links: ## note = ## for the canned note of "This tutorial assumes that you have completed the previous tutorials:" just add the links ## note.0= ## descriptive title for the tutorial ## title = Multiple SIFT files per object ## multi-line description to be displayed in search ## description = This tutorial shows how to configure multiple SIFT files for an object and when is it useful to do so ## the next tutorial description (optional) ## next = ## links to next tutorial (optional) ## next.0.link= ## next.1.link= ## what level user is this tutorial for ## level= IntermediateCategory ## keywords = #################################### <<IncludeCSTemplate(TutorialCSHeaderTemplate)>> <<TableOfContents(4)>> ## AUTOGENERATED DO NOT DELETE ## TutorialCategory ## FILL IN THE STACK TUTORIAL CATEGORY HERE = Introduction = A recap of the system architecture is presented in the figure below. BLORT is running an edge-based object tracker which is initialized by a SIFT feature-based detector module. Even though SIFT features provide scale invariance, this is not the case when applied to different viewpoints. Our prior experience showed that the SIFT points extracted from an object surface greatly vary depending on the viewpoint and the distance of the camera to the object. During the training phase, the detector registers = Setup file = = Implications on speed and behaviour =